The soil erosion on slopes proceeds in the following manner:
Correct answer: C. Rill - Gully - Ravine
- A. Gully - Rill - ravine
- B. Rill - Ravine - Gully
- C. Rill - Gully - Ravine
- D. Ravine - Rill - Gully
Explanation
Erosion commonly progresses from small channels called rills to deeper gullies and finally to very large channels called ravines. Thus the order is rill, gully, and ravine.
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